Material for bearings, valves, &amp;c.



ran ares an Eric,

ISIDOR KITSEE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE XELTON COMPANY, OF NEW JERSEY.

MATERIAL FQR BEARINGS, VALVES, 800.

srnolrrcnrlou forming part of Letters Patent No. 646,917, dated April s,1900.

Application filed November 23, 1898 T0 at whom it may concern:

Be it known that I, ISIDOR Krrsnn, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Material for Bearings,Valves, &c., which improvement is fully 'set forth in the followingspecification.

My invention consists of a material the base of which is cotton and abinder of celluloid, the same being solid and resilient in its nature.

In carrying out my invention I take, say, seventy per cent. of rawcotton and thirty per cent. of celluloid. The cotton is picked andimpregnated or mixed with celluloid, which is primarily dissolved by anysuitable solvent, such as ether and alcohol, using about two parts ofalcohol to one part of ether, wood-alcohol being preferred, andcelluloid scraps being admirably adapted for my purpose. The mass isthen poured into a mold and compressed, the resultant article beingtough, resilient, impervious to water, and 0ffers great resistance tothe severe use to which it may be subjected,

Serial No. 697,2 75. (N0 specimens.)

In order to render the resultant article non inflammable, there may beadded to the mass prior to molding a solution of, say, alum andphosphate of ammonia.

Plumbago or othersuitable material may be mixed with the compound ofcotton and celluloid, together with paper-pulp, sawdust, &c., thusforming a valuable lubricator,which in the case of bearings makes thelatter selflubricating.

I have described the compound as adapted for bearings, valves, &c. but Ireserve the right to use the same for any other purpose to which it isadaptable.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- As a new article of manufacture, amaterial consisting of a base of cotton and a binder of celluloidcombined therewith.

In testimony whereof I sign my name in the presence of two subscribingwitnesses.

ISIDOR KITSEE.

Witnesses:

WALLACE B. ELDRIDGE, A. P. Ruruiianonn.

